Apparatus for the production of horizontal stripes on the circular type knitting frame



E. MILNER ET AL Apnl 17, 1934. 1,955,594

APPARATUS FOR THE PRODUCTION OF HORIZONTAL STRIPES ON THE CIRCULAR TYPEKNITTING FRAME Filed July-ll. 1950 10 Sheets-Sheet 1 i NVENTORS NK l/HLTER EM/L N/L/vER -12 FRI? BY 2! M Ma W4 A'ITORNEYJ Aprll 17, 1934.MlLNER AL 1,955,594

APPARATUS FOR THE PRODUCTION OF HORIZONTAL STRIPES on THE CIRCULAR TYPEKNITTING FRAME Filed July 11, 1930 10 Sheets-Sheet 2 INVENTORS EM/LM/LNER M, F'RHN/f Alan-5R BYfjonk. OW:

ATTORNEYS April 17, 1934.

E. MILNER El AL APPARATUS FOR THE PRODUCTION OF HORIZONTAL STRIPES ONTHE CIRCULAR TYPE KNITTING FRAME Filed July 1] 1930 10 Sheets-Sheet 3INVENTORS EM/L NIL/Vt?! m RHNK UFLTE A'ITORNEY5 Apr-11 17, 1934. E.MILNER r-:r AL 1,955,594

APPARATUS FOR THE PRODUCTION OF HORIZONTAL STRIPES ON THE CIRCULAR TYPEKNITTING FRAME Filed July 11, 1950 10 Sheets-Sheet 4 I I I z 2 I I m7 II I l I INVENTORS EM/L JV/LNER mwf'kH/m NFL-TEA BYALM 0 MW ATTORNEYSApn! 17, 1934. E. MILNER El AL 1,955,594

APPARATUS FOR THE PRODUCTION OF HORIZONTAL STRIPES ON THE CIRCULAR TYPEKNITTING FRAME Filed July 11, 1930 10 Sheets-Sheet 5 INVENTORS EN/L.lf/LNER mu: FRfi'N/f NHLTER BYMM How ATTORNEYS April 17, 1934- E. MiLNERET AL ,955,594

APPARATUS FOR THE PRODUCTION OF HORIZONTAL STRIPES ON THE CIRCULAR TYPEKNITTING FRAME Filed July 11. 1930 10 Sheets-Sheet e INVENTORS EM/LM/LNER MD FRHNK NHLrER BY 11m w MOW ATTORNEYS E. MILNER ET AL 1,955,594APPARATUS FOR THE PRODUCTION OF HORIZONTAL STRIPES ON THE CIRCULAR TYPEKNITTING FRAME Filed July 11, 1930 10 Sheets-Sheet 7 April 17, 1934INVENTORS E'M/L M/LNER MDFkH/v/r WELT/FR aw. P Mafia ATTORNEYS April 17,1934. E. MILNER El AL 1,955,594

APPARKTUS FOR THE PRODUCTION OF HORIZONTAL STRIPES QN THE CIRCULAR TYPEKNITTING FRAME Filed July 11, 1930 10 Sheets-Sheet 8 INVENTORS ENILM/LNR m F? n/wr News ATI'ORNEY5 10 Sheets-Sheet 9 April 17, 1934. E.MILNER ET AL APPARATUS FOR THE PRODUCTION OF HORIZONTAL STRIPES ON THECIRCULAR TYPE KNITTING FRAME Flled July 11, 1930 INVENTORS EM L MIL NERDMD FRHNK NF. TER

B LLW 069W ATTORNEYS April 17, 1934. mL ET AL 1,955,594

APPARATUS FOR THE PRODUCTION OF HORIZONTAL STRIPES on THE CIRCULAR TYPEKNITTING FRAME Filed July 11, 1930 10 Sheets-Sheet 10 l NVENTORS 5mmM/LNER mm FRF/NK Um TER ATTORNEYS Patented Apr. 17, 1934 a FiCE-APPARATUS FQR THE PRQDUCTHQN OF HORIZGN'EAL STREPES N THE CEECULAR TYPEKNITTING FRAME Emil Milner and Frank 'Walter, Philadelphia, Pa.,assigncrs to Continental Mills, Inc, Philadelphia, Pa.

Application July 11, 1930, Serial No. 467,234

22 Claims.

This invention relates to an attachment for circular knitting machinesand has reference particular to certain instrumentalities whichcooperate with the regular knitting elements to produce a horizontalstripe at predetermined space intervals throughout the knitted fabric.

The object of our invention is to provide an attachment which is readilyapplicable to a circular knitting machine for th purpose of introducinga new yarn into the fabric being knitted, the new yarn being knitted infor one or more rows while the old yarn is held in readiness to againtake its place in the needles immediately the new yarn has completed itsrow of stripes.

A further object of this invention is to provide a mechanism of thischaracter which is enioient in operation and extremely easy to adjustfor different knitting gauges.

We accomplish these objects by means of the attachments hereinafterdescribed in the specification, se forth in the appended claims andillustratively exemplified in the accompanying drawings, in which,Figure 1 is a side elevational view of the horizontal striper; Figure 2is a substantially horizontal sectional view of the striper taken onlines 2-2 of Figure 1; Figure 3 is an end elevational View of thestriper; Figure 4 is a top plan view of. the cam setting mechanism forthrowing the striper into operation; Figure 5 is a side elevaticnal viewof the cam setter; Figure 6 is a substantially longitudinal sectionalview or" the cam setter taken on lines 6-5 of Figure l; Figure 7 is afront elevational view of a am carried by the circular needle table foroperating the care setter; Figure 8 is a perspective view of thecircular needle table and the cam attachments for operating the striperattachrnent; Figure 9 is a substantially transverse sectional View ofthe needle table showing the cam attachment for operating the cutter andyarn holder in the striper attachment; Figure 10 is a perspective viewof the side of the striper attachment showing the parts in a positionready to introduce the new yarn and begin the stripe; Figure 11 is a topplan elevational view of the same; Figure 12 is a view of the parts asillustrated in Figure it; Figure 13 is a view similar to Figure 19 withthe parts moved to their second position; Figure 14 is a top plan Viewof the parts in tl e position shown in Figure 13; Figure 15 is a frontelevational view of the same; Figure 16 is a perspective view of theside of the striper with its parts in their third positions; Figure 17is a top plan view of the same; Figure 18 is a front elevational view ofthe needle bed and a (Cl. 66-M0) sectional portion of the striper;Figure 19 is a perspective view of the striper in the fourth position ofits parts; Figure 20 is a top plan view thereof; and Figure 21 is afront elevational view of the needle bed of the parts in the fourthposition.

Referring now to the drawings, 10 denotes the cylinder of a knittingmachine and 11 the needle plates which are clamped to the cylinder 10 intheir upright positions by means of clamp screws 12. A back stand ring13 is fixed in position on the cylinder 10 to support the backs of thebearded spring needles 14, the outer sides thereof being clamped inposition by the needle plates 11.

The needle cylinder 10 revolves on a bed plate,

not shown, which forms the working top surface of the original knittingmachine, and upon which the several instrumentalities are mounted inclose proximity to the periphery of the revolving cylinder 1G.

The several instrumentalities constituting the present attachment arebrought into successive operation by means of a series of cams mountedon the revolving cylinder 10 and needle plates 11. The first instrumentto be effected is the star wheel cam setter, illustratively exemplifiedin Figures l to 7, inclusive, which comprises a base plate 15 fixed onthe bed plate of the machine and provided with three upright posts 16,1'? and 18, the latter being disposed on a radial line of the cylinder10. The rear post 16 is higher than the others and is provided at itsupper end with a bearing in which one end of a stud shaft 19 is rigidlyfixed, the outer end of the shaft carrying one end of an inclined arm20. Intermediate the post 16 and arm 20 is a ratchet wheel 21 adjacentthe post 16, a link plate 22 having a longitudinally disposed centralslot 23 to loosely embrace the shaft 19, the upper end of the link 22having a roller 24 mounted on a screw stud 25 projecting from one sideof the link. The lower end of the link 22 is pivotally connected to oneend of a lever 26, which oscillates on a stud 27 and which on itsopposite end is provided with an upright transverse shoe 28. This shoe28 is adapted to engage under the star wheel setting cam 29 to lift thesame into the path of a star wheel 30 carried by the striper attachment,as hereinafter described. The cam 29 is depressed downwardly out or" thepath of the star wheel 30 by means of the same shoe 28 which aftermaking one or more complete revolutions is caused to take a highposition and consequently the upper side of the cam is engaged and thelatter forced downwardly out of the path of the star wheel.

The high and low positions of the link 22 are effected by a link chain31 having certain of its links provided with cam surfaces 32 adapted toengage under the roller 24 and lift the link 22 the length of the slot23. The chain 31 is carried at its upper end by a sprocket wheel 33mounted on the shaft 19 and integrally attached to the hub of theratchet wheel 21. The lower end of the chain simply hangs downwardly asillustrated in Figure 5. Intermittent rotary movement is imparted to theratchet wheel 21 by means of a dog 34 shown in Figure 6, which projectsupwardly from one end of a lever 35 to which it is pivotally mounted,the hooked end 36 of the do being held yieldably against the ratchetwheel 21 by a spring 37 which is attached at one end to a pin projectingfrom the rear edge of the dog 34. while the upper end of the spring isconnected to an arm 38 projecting from the upper end of the post 16, asshown in Figure 4. The lever 35 is pivotally mounted to the intermediatepost 1'? on a screw 39 and at its free end is provided with a shoe 40,which is disposed in the path of a cam 41 carried by one of the needleplates 11, as illustratively exemplified in Figures 6 and 7. Eachrevolution of the cam 41 with the table 10 causes the same to engage theshoe 40 and lift the free end of the lever 35, while the other end ofthe latter drops and drags the dog 34 with it to rotate the ratchetwheel 21 the distance between adjacent teeth. In the production ofdifferent knitting effects two or more cams 41 may be used and spacedfrom each other about the periphery of the cylinder 10. The position ofthe sprocket 33 and chain 31 is made stationary following each movementthereof by means of a toothed wheel 42 loosely mounted on the shaft 19and attached to the sprocket wheel 33 on its side opposite the ratchetwheel 21. A back lash dog 43 is held in yieldable engagement with thewheel 42 by a spring 44, the pivoted end of the dog 43 being mounted ona screw stud 45 projecting from the free lower end of the arm 20.

The upper position of the shoe 28 is limited by a set screw 46 which iscarried over the end of the lever 26 in a bracket 4'7 projecting fromthe side of the third post 18. In its depressed position the lever 26adjacent the shoe 28 engages a flat spring 48, one end thereof beingfixed on the surface of the base plate 15, as illustrated in Figure 4.

The star wheel cam 29, as just explained, is raised and lowered to bringit into and out of the path of the star wheel 30, which operates theseveral movements of the striper mechanism. The cam 29 comprises alateral plate having two high points 49 and 50 spaced one behind theother so that, first, point 49 engages the star wheel 30 and turns it aquarter turn and then point 50 engages and completes the full half turnof the wheel. The inner end of the plate carries an upright slide 51,which moves in guideways 52 cut in the outer face of a needle plate 11,and which is provided with upright slots 53 to receive guide screws 54screwed into the needle plate 11 and provided with heads overlying thesides of the slots 53 to hold the slide 51 in position against theneedle plate 11, as illustratively exemplified in Figures 4 and 8. Whenthe cam 29 is moved to its upper position, as shown in Figure 8, it

is held there by means of a dog 55 which is provided with a tooth 56engaging a notch 57 in the side of the slide 51. The dog 55 is pivotallymounted on the needle plate 11 adjacent the one carrying the cam 29 andits upper end has an eye to receive the free end of a rod 58, the latterbeing pivotally carried at its other end in a lug 59. A spring 60 isdisposed about the rod 58 and tends to force the dog 55 against theslide 51 and into the notch 5'7. As already explained, the cam 29 whenbeing held by the dog 55 is disengaged as it is engaged under the shoe28, which has been raised by a spring connection 61 between the lever 26and a bracket 62 projecting from the upper end of the intermediate post17.

Referring now to the mechanism for introducing the horizontal stripeinto the fabric being knitted, reference will be had particularly toFigures 1 to 3 and 10 to 21. The striper comprises a base plate 63,which is adapted to be mounted upon the bed of the knitting machineclosely adj acent the periphery of the cylinder 10, and which isprovided with an upright bored column 64 having a side wing portion 65',and angular projection 65 disposed in a direction away from the cylinder10. The rear end of the projection 65 is provided with an upright borein which an upright shaft 66 is mounted, the end of the latter below thebearing being provided with a pinion gear 57 and a cam lock 68 in theform of a circular plate having two diametrically oppositely projectingteeth 69. The pinion gear 6'7 is in mesh with a similar pinion gear 67idly mounted on a screw bearing 70 in the upper face of the base plate63. A relatively large idler spur gear 71 is in mesh with the pinion 67and with a spur gear '72 which forms an integral part of the star wheel30, the latter being disposed above the spur gear 72 and both arefixedly mounted on an upright fixed stud shaft 73 projecting into thebase plate 63 at one end and supported at its upper end in an arm 74 ofan upright standard 75 of the base 63.

The star wheel 30 comprises a rotary member having four equally spacedteeth and for the sake of clarity we have designated the teeth 1, 2, 3,and 4, which denotes the order in which they are engaged by the cam 29.The base 63 is provided with an opening in which a disc 30a is mounted,the latter turning with the shaft '73 and having depressions 30b in itsperiphery corresponding with the number of teeth in the star wheel 30.An opening is drilled in the base 63 radially of the opening thereof toaccommodate a ball or plunger 300 which is urged in the direction of thedisc 30a and into one of the depressions 301) by a spring 30d, a screw30c being placed in the opening to hold the spring under tension. SeeFigures 1 and 2. The movement which the star wheel 30 imparts to thegears 72, 71, 6'7 and 67 is transmited to the shaft 66 which carries aseries of four cams 76, 7'7, 78 and '79 each being arranged above theother and adapted to operate a similar number of slide bars 80, 81, 82and 33, respectively. The uppermost slide controls the movement of aslide link at the end of which is a yarn clamp 84 holding the severedend of the yarn against a plate 85 arranged on the under side of astationary cutting blade 86, the latter being fixed on a bracket 87carried on the wing portion 65 of the column 64. The end of the cuttingblade 86 beyond the cutting edge is inclined downwardly and thenupwardly to form an angular tail piece 88. The next lower cam 77 throughthe slide 81 and a link connection reciprocates the side thereof intoengagement with a radial toe 91 of the outside yarn finger 92 asillustrated in Figure 1 particularly. The fourth slide 83 is alsoprovided with a downwardly projecting portion 93 which is engaged by aradially dim posed toe 94 of an inside yarn finger 95. Both yarn fingers92 and 95 are rotatably mounted on the same pivot screw 95 which isdisposed at an angle and is carried by one side of the angularprojection 65. The slide plates 80, 31, 32 and 33 are held in retractedposition by means of springs 97, each thereof being attached to itsrespective slide at one end, while the opposite end is attached to afixed part of the apparatus. The yarn fingers and 95 are respectivelyprovided with further radial projections 93 and 99 which receive theends of springs 100 and 101, respectively, the other ends of the springsbeing attached to an arm 102.

A stitch wheel bracket 103 is carried by the striper and comprises ashank 104 projecting into the bore of the column 64 Where it is held inany adjusted position by means of a set screw 1115. The shank 194supports a transversely disposed barrel portion having its outer endprovided with an angular bracket 166, the bracket being slotted at theend to receive a spindle 107 upon which the arm 102 is mounted. Thespindle 107 is disposed at an inclination to the perpendicular and onits depending end it carries loosely a stitch wheel 108, the lattercomprising a plurality of inclined semi-circular radially disposedblades 109, the outer ends of which are provided with burrs 110. Theblades are arranged in numbers corresponding to the distance betweenneedles 14 and the gauge of the fabric to be knitted. The stitch wheel108 is supported so as to operate just over the angular tail 88 of thestationary cutting blade 86. The yarn is guided into the burrs 119 ofthe blades 199 and then into the needles 14 from a yarn guide 111, whichcomprises a long straight shank mounted on an offset portion of thebarrel of the bracket 103 and a curved free end portion 112 having acurved slot 113 in the arc of the eyes 114 and 115 at the ends of yarnfingers 92 and 95, respectively, as illustrated in Figure 1.

The yarns designated A and B are, respectively, the yarn of which thebody of the fabric is being knitted and yarn of which the stripe isbeing produced. Suitable eyelets 116 are carried at the outer ends ofradial arms 117' which form a spider bracket mounted on the inner end ofthe yarn guide 11, the eyelets 116 being adapted to carry the separateyarns into positions adjacent the eyes 114 and 115 of the yarn fingers.

As will be explained hereinafter, the yarn clamp 84 and cutter blade 8are arranged so that the clamp 34 moves into clamped position to holdthe yarns and is followed immediately by the cutter blade 89. Thismovement is controlled by an upright slide post 117 having two alignedslots 118 to accommodate screws 119 mounted in an arm of a bracket plate120 which it attached by its other arm to the projection 65. The headsof the screws 119 overlap the side walls of the slots 118 and hold thepart 117 against the bracket plate 120, as illustrated in Figure 3. Theupper end of the slide part 117 is provided with a stop plate 121projecting at right angles thereto and in the direction of the tailportions of the two upper slide bars 80, and 81. The plate 121 isprovided with a slot 122 in its free end to allow a projection 124 ofthe slide 81 to pass through without the clamp 84 being withdrawn.

A second projection 123 on slide passes over plate 121 at the same timethat projection 124 passes through the slot 122. The normal tendency ofthe slide part 117 is to move upwardly, which movement is caused by aspring 125 having one end attached to the lower side of the part 117 andits upper end to the upper end of the bracket plate 120. The slide part117 having been moved to its lower position, and having brought the slot122 in line with the projection 124 of the cutter blade slide 81, thusfreeing both slides to be closed, the slide 117 is locked in loweredposition by means of a lever dog 126, which is pivotally mounted on ascrew stud 127 standing upright in the wing section 120 adjacent thepinion 67 and cam lock 68 of the upright shaft 66. One end of the leverdog 1.26 is disposed in the path of the teeth 69 of the lock 68, whilethe other end is urged against the upright side of the part 117 by meansof a spring 127'. The outer end of the dog 126 is provided with a toe128 which enters a notch 129 in the side of the part 11.7 when thelatter has been moved to its lowest position.

The means utilized to operate the part 117 in a downward directionagainst the spring 125 comprises a lever arm 130 pivoted at one end tothe upper end of an upright post 131 and slotted at its other end toreceive a pin 132 projecting from the outer face of the part 117 midwaybetween the slots 118. Intermediate the ends of the lever 130 is a screwpivot 133 upon which the upper end of a lifting link 134 is mounted, theopposite or lower end being pivotally supported on an arm 135. The arm135 at its other end is fixed to turn with shaft 136 bearing in theparallel legs of an inverted U-shaped bracket 137, which receives itsrigid support on a projection 133 of the column 64, and which is rigidlyattached at its outer leg to the lower end 115 of the upright post 131.The shaft 136 is disposed on a radial line of the table 10 and at itsinner end beyond the bracket 137 is mounted an arm 139 which, as shownin Figure 3, trails in the direction of rotation of the cylinder 10, soas to be disposed in the path. of a release earn 149 mounted on abracket 141 connected to the lower edge of the cylinder 10 at a pointbelow the star wheel cam plate 29. The cam 140 has a beveled approachand tail so that the arm 139 when brought into engagement therewith isforced to ride up, then along the length of the high part of the cam andfinally rides down again. to allow the slide part 117 to assume itsinitial position upon release of the lock 68.

A complete knitting machine of the type applicable to a horizontalstriper of the character just described, has not been illustrated,because spring needle knitting machines are particularly well known inthe art and have been 135 widely used for knitting underwear, eiderdown,stockinet and astrakhan fabrics for many years. The machines usuallycarry two rotary needle cylinders 10 and the cylinders of knittedfabrics released from the needles 14 mount upwardly and are rolled upona pair of overhead take up rollers.

The operation of our im roved lateral or horizontal striper attachmentsis substantially as follows: Assuming the parts are in the positionillustrated in Figures 10, 11 and 12 and the two yarns being used are ofdifferent colors, A being the light colored yarn and forming the body ofthe fabric, while B is the yarn for forming the stripe and is shaded toshow contrast, A yarn is guided through an eyelet 116 and thence 150through the eye 115 of yarn finger 95 to the slot 113 of the yarn guide111 where it passes over the tail piece 88 of the stationary cuttingblade 86, and is picked up by the burr or nib 110, subsequently beingfed under the beards of the needles 14. The old row of loops C of thefabric still about the base of the needles .4 is pushed downwardly by acloth push down bar 141 arranged at the rear of the revolving line ofneedles 14 as they pass the striper. The other yarn B is likewise fed inthrough an eyelet 116 and then to the eye 114 of the outside yarn finger92. From the finger 92 it passes through the lower end of the slot 113of the yarn guide 111, which is swung to its lowermost position andwhich guides the yarn B in a position which allows it to be held by theyarn clamp 84, the movable cutting blade 89 being closed, as shown inFigure 11. Figure 12 shows the yarns A and B, in and out of actionbefore the yarn B is changed for yarn A. The tooth 1 of the star wheel30 is disposed in position to be next engaged by the cam 29 when thelatter is raised to operative position by the cam setter shoe 28.

The next step in the operation of changing over from yarn A to yarn B isillustratively exemplified in figures 13, 14 and 15, wherein the nee dlecylinder 10 has revolved until the first high point 49 of the star wheelcam 29 has engaged tooth l of the star wheel and caused the latter tomake a quarter turn. The movement of star wheel 30 has been carriedthrough the train of gears '72, '71, 68 and 67 to the shaft 66 which hasmoved cams T6 and '77 into position to cause the slides and 81 towithdraw the movable cutter blade 89 and yarn clamp 84, respectively, asshown in Figure 14. Cams 78 and 79 have also moved to operate theirslides 82 and 83, respectively, and cause the two yarn fingers 92 and 95to take adjacent parallel positions, shown in Figure 13. Instantly uponrelease of the yarn B by the clamp 84 and its elevation from the bottomof the yarn guide slot 113 by the finger 92, it is picked up by the nib110 of one of the blades 109 and introduced between adjacent passingneedles at a point below the beards. At this point the picked up stripeyarn B accompanies the yarn A which is still being fed to the needles14, as shown in Figure 15.

The needle table 10 and star wheel cam 29 being continuously on themove, the second or trailing high point 50 has engaged the tooth 2 ofthe star wheel turning the latter another quarter turn, and with it theyarn fingers 92 and 95 to the position shown in Figures 16, 1'7 and 18,i. e., the cams '78 and 79 having continued to move their slides 82 and83 until the outside finger 92 with its yarn B is in its high positionand the inside finger 95 is in its low position bringing yarn A to thebottom of the slot 113 in the yarn guide 111. At this point the stripeyarn B has been fed into about three loops, as shown in Figure 17 andboth the cutter blade 89 and yarn clamp 84 are still held open. The yarnA is now in position to be taken out of action and the movable cutterblade 89 is open to receive this yarn during the next movement.

The fourth and last position of the striper is illustrated in Figures19, 20 and 21, wherein the cutter blade release cam 140 has lifted thearm 139 and through the link connection has caused the upper projection121 to release the slide 80 and allow the clamp 84 to move in and engagethe yarn A. When the slide part 11'? is moved from its upper to itslower position, the upper projection and plate 121 releases slide 80 andis immediately followed by movement of the lower projection of plate 121to release slide 81. Almost instantly following the movement of theclamp 84 to close on yarn A the cutter blade is released and severs theyarn as illustrated in Figure 20. By this time the striper yarn B hasthree loops formed beyond the stitch wheel, so that the operation willcontinue with yarn B until the cam setter having lowered the cam 29 outof the path of the star wheel 30 on the completion of the firstrevolution is again set in position to lift the cam 29 into the path oftooth 3 of the star wheel, which in the third quarter turn reverses theoperation described in the first operation and completely returns yarn Ato feeding position subsequent to the final quarter, turning beingeffected as the second high point 50 of cam 29 turns star wheel 30 byengaging tooth 4.

Having now described one complete cycle of our horizontal knittingattachment and preceded it by a detailed account of the partsconstituting the invention, what we claim as new and desire to secure byLetters Patent is:

1. In a horizontal striping attachment for a knitting machine having acircularly arranged needle table with upright spring bearded needlesdisposed peripherally thereof, the combination of a horizontal stripingattachment disposed outside the needle table, comprising means forintroducing yarn between and beneath the beards of successive needles ata certain stage in the circular travel thereof, means for carrying twoseparate yarns and bringing one or the other into position to be pickedup by the first means, further means for holding and severing one yarnwhile the other yarn is being fed into the needles by the first meansand means movable in an upright direction and carried by the needletable and being selectively positioned to cause movement in the yarncarrying means to reverse the positions of the yarns and to operate theyarn holding and severing means, and in which the last means comprises acam having two high points and being movable in an upright direction inand out of position to move the yarn carrying means and holder andsevering means, and a cam setting device mounted in advance of thestriper attachment to move the cam into and out of operative position.

2. In a horizontal striping attachment for a knitting machine, having acircularly arranged needle table with upright spring bearded needlesdisposed peripherally thereof, the combination of a horizontal stripingattachment disposed outside the needle table, comprising means forintroducing yarn between and beneath the beards of successive needles ata certain stage in the circular travel thereof, means for carrying twoseparate yarns and bringing one or the other into position to be pickedup by the first means, further means for holding and severing one yarnwhile the other yarn is being fed into the needles by the first meansand means movable in an upright direction and carried by the needletable and being selectively positioned to cause movement in the yarncarrying means to reverse the positions of the yarns and to operate theyarn holding and severing means, and in which the last means comprises acam plate having two high points, one thereof being adapted to place thesecond means into operation to reverse the positions of the two yarnsand the second operating the yarn holding and severing means, means forholding said cam for vertical adjustment with respect to the needletable, yieldable means for holding the cam in operative position, and acam setting device mounted in advance of the striper attachment to movesaid cam into operative position and then into inoperative position.

3. In a horizontal striper attachment for a knitting machine, having acircularly arranged needle table provided with upright spring beardedneedles disposed peripherally thereof, the combination of a horizontalstriping attachment disposed entirely outside the needle table,comprising a rotary bladed stitching wheel arranged to introduce yarninto the needles beneath their beards, yarn fingers pivotally mountedand adapted to carry a plurality of yarns to bring one at av time intothe path of the stitching wheel, a yarn clamp for holding the inactiveyarn, a cutting blade for severing the active yarn after the yarns havebeen reversed by said yarn fingers, a set of cams moving together andseparately operating the yarn fingers, yarn clamp and cutting blade,means for imparting movement to said cams, and means moving in acircular path with said needle table and movable into and out of thepath of the first means to bring it into operative or inoperativeposition for effecting movement in the yarn fingers, clamp and cuttingblade, and in which the means for imparting movement to the camscomprises a star wheel having its teeth operated intermittently byengagement with the first means in its operative position.

4. In a horizontal striper attachment for a knitting machine, having acircularly arranged needle table provided with upright spring beardedneedles disposed peripherally thereof, the combination of a horizontalstriping attachment disposed entirely outside the needle table,comprising a rotary bladed stitching wheel arranged to introduce yarninto the needles beneath their beards, yarn fingers pivotally mountedand adapted to carry a plurality of yarns to bring one at a time intothe path of the stitching wheel, a yarn clamp for holding the inactiveyarn, a cutting blade for severing the active yarn after the yarns havebeen reversed by said yarn fingers, a set of cams moving together andseparately operating the yarn fingers, yarn clamp and cutting blade,means for imparting movement to said cams, and means moving in acircular path with said needle table and movable into and out of thepath of the first means to bring it into operative or inoperativeposition for effecting movement in the yarn fingers, clamp and cuttingblade, and in which the means for impartin movement to the camscomprises a star wheel having radial teeth disposed in the path of saidfirst means, a train of gears operated by movement of said star wheel,and a coil mon shaft for one of the gears and all of the cams.

5. In a horizontal striper attachment for a kni ting machine, having acircularly arranged needle table provided with upright spring beardedneedles disposed peripherally thereof, the combination of a horizontalstriping attachment disposed entirely outside the needle table,comprising a rotary bladed stitching wheel arranged to introduce yarninto the needles beneath their beards, yarn fingers pivotally mountedand adapted to carry a plurality of yarns to bring one at a time intothe path of the stitching wheel, a yarn clamp for holding the inactiveyarn, a cutting blade for severing the active yarn after the yarns havebeen reversed by said yarn fingers,

a set of cams moving together and separately operating the yarn fingers,yarn clamp and cutting blade, means for imparting movement to said cams,and means moving in a circular path with said needle table and movableinto and out of the path of the first means to bring it into 0 erativeor inoperative position for effecting movement in the yarn fingers,clamp and cutting blade, and in which the first means comprises alateral cam plate having two high points, one trailing the other, and inwhich the second means comprises a star wheel having four radial teethto be engaged by said cam, a train of gears operating from aid starwheel, and a common shaft for one of the gears and all of the cams.

In a horizontal striper attachment for a knitting machine. having acircularly arranged needle table provided with upright spring beardcdneedles disposed peripherally thereof, the combination of a horizontalstriping attachment disposed entirely outside the needle table,comprising a rotary bladed stitching wheel arranged to introduce yarninto the needles beneath their beards, yarn fingers pivotally mountedand adapted to carry a plurality of yarns to bring one at a time intothe path of the stitching wheel, a yarn clamp for holding the inactiveyarn, a cutting blade for severing the active yarn after the yarns havebeen reversed by said yarn fingers, a set of cams moving together andseparately operating the yarn fingers, yarn clamp and cutting blade,means for imparting movement to said cams, and means moving in acircular Path with said needle table and movable into and-out of thepath of the first means to bring it into operative or inoperativeposition for effecting movement in the yarn fingers, clamp and cuttingblade, and in which the first means comprises a lateral cam having twohigh points, one trailing the other, a mounting for the cam permittingvertical adjustment thereof, means operated by rotary movement of theneedle table to set the elevation of the cam, and in which the secondmeans comprises a star wheel having four teeth disposed in the path ofthe cam in its upper adjusted position, a train of gears operated fromthe star wheel, and a shaft common to the end gear of the train and allof the cams.

7. In a horizontal striper attachment for a knitting machine, having acircularly arranged needle table provided with upright spring beardedneedles disposed peripherally thereof, the combination of a horizontalstriping attachment disposed entirely outside the needle table,comprising a rotary bladed stitching wheel arranged to introduce yarninto the needles beneath their beards, yarn fingers pivotally mountedand adapted to carry a plurality of yarns to bring one at a time intothe path of the stitching wheel, a yarn clamp for holding the inactiveyarn, a cutting blade for severing the active yarn after the yarns havebeen reversed by said yarn fingers, a set of cams moving together andseparately operating the yarn fingers, yarn clamp and cutting blade,means for imparting movement to said cams, and means moving in acircular path with said needle table and movable into and out of thepath of the first means to bring it into operative or inoperativeposition for effecting movement in the yarn fingers, clamp and cuttingblade, and in which the first means comprises a lateral cam having twohigh points one trailing the other, a mounting for the cam permittingvertical adjustment thereof, a cam setter attachment disposed in advanceof the striper attachment and having means for raising and lowering theposition of the cam during revolution of the needle table, and meansmoving with the table in advance of the cam to operate said cam setter.

8. In a horizontal striper attachment for a knitting machine, having acircularly arranged needle table provided with upright spring beardedneedles disposed peripherally thereof, the combination of a horizontalstriping attachment disposed entirely outside the needle table,comprising a rotary bladed stitching wheel arranged to introduce yarninto the needles beneath their beards, yarn fingers pivotally mountedand adapted to carry a plurality of yarns to bring one at a time intothe path of the stitching wheel, a yarn clamp for holding the inactiveyarn, a cutting blade for severing the active yarn after the yarns havebeen reversed by said yarn fingers, a set of cams moving together andseparately operating the yarn fingers, yarn clamp and cutting blade,means for imparting movement to said cams, and means moving in acircular path with said needle table and movable into and out of thepath of the first means to bring it into operative or inoperativeposition for effecting movement in the yarn fingers, clamp and cuttingblade, and including needle plate sections and a back rail between whichthe needles are clamped, and in which said first means comprises a cammounted for vertical adjustment on one of said needle plates, said camhaving a notch in its wall, a dog latch yieldably engaging in said notchto hold the cam in its uppermost position, and a cam setter arranged inadvance of the striper attachment for raising and lowering the cam.

9. In a horizontal striper attachment for a knitting machine, having acircularly arranged needle table provided with upright spring beardedneedles disposed peripherally thereof, the combination of a horizontalstriping attachment disposed entirely outside the needle table,comprising a rotary bladed stitching wheel arranged to introduce yarninto the needles beneath their beards, yarn fingers pivotally mountedand adapted to carry a plurality of yarns to bring one at a time intothe path of the stitching wheel, a yarn clamp for holding the inactiveyarn, a cutting blade for severing the active yarn after the yarns havebeen reversed by said yarn fingers, a set of cams moving together andseparately operating the yarn fingers, yarn clamp and cutting blade,means for imparting movement to said cams, and means moving in acircular path with said needle table and movable into and out of thepath of the first means to bring it into operative or inoperativeposition for effecting movement in the yarn fingers, clamp and cuttingblade, and in which the second means includes a star wheelintermittently rotated by being engaged by the first means, a train ofgears operated by movement of the star wheel, a shaft common to saidcams and the end gear of the train, a tooth member mounted on saidshaft, a slide operating each yarn finger, clamp and cutter-blade fromits respective cam, a movable member having a slot to be moved intoposition to free the slide operating the cutterblade, means operated bysaid toothed member to engage the slotted member and hold the samestationary, and cam operated means for operating the slotted member intoand out of engagement with said slide member for the cutter blade.

10. In a horizontal striper attachment for a knitting machine, having acircularly arranged needle table provided with upright spring beardedneedles disposed peripherally thereof, the combination of a horizontalstriping attachment disposed entirely outside the needle table,comprising a rotary bladed stitching wheel arranged to introduce yarninto the needles beneath their beards, yarn fingers pivotally mountedand adapted to carry a plurality of yarns to bring one at a time intothe path of the stitching wheel, a yarn clamp for holding the inactiveyarn, a cutting blade for severing the active yarn after the yarns havebeen reversed by said yarn fingers, a set of cams moving together andseparately operating the yarn fingers, yarn clamp and cutting blade,means for imparting movement to said cams, and means moving in acircular path with said needle table and movable into and out of thepath of the first means to bring it into operative or inoperativeposition for effecting movement in the yarn fingers, clamp and cuttingblade, and in. which the second means includes a star wheelintermittently rotated by being engaged the first means, a train ofgears operated by movement of the star wheel, a shaft common to saidcams, and the end gear of the train, a tooth member mounted on saidshaft, a slide operating each yarn finger, clamp and cutter-blade fromits respective cam, a movable member having a slot to be moved intoposition to free the slide operating the cutter-blade, means operated bysaid toothed member to engage the slotted member and hold the samestationary, a cam attached to the needle table under the first cam, alink connection for lifting the slotted member, a spring for returningthe same, a shaft operatively connected to said link connection, and anarm carried by the shaft in the path or the second cam.

11. In a horizontal striper attachment for a knitting machine having apair of yarn fingers for shifting one of two yarns out of the path ofthe rotary stitch wheel, the combination therewith of a trip cam havingtwo high points movable in an upright direction and selectively disposedto cause movement in the fingers, and capable of movement verticallyinto and out of operative position, a cam setting attachment forchanging the elevation of the cam, comprising a lever arm movable tolift said cam as it passes and to depress the cam again in a subsequentpassing thereof.

12. In a horizontal striper attachment for a knitting machine having apair of yarn fingers for shifting one of two yarns out of the path ofthe rotary stitch wheel, the combination therewith of a trip cam havingtwo high points movable in an upright direction and selectively disposedto cause movement in the fingers, and capable of movement verticallyinto and out of operative position, a cam setting attachment forchanging the elevation of the cam, comprising an arm pivotally mountedcentrally thereof and having a shoe at its free end movable into thepath of said cam to raise the same and thereafter to again return thecam to its initial position out of the path of the shoe, and means tolower said arm at its free end to engage under the cam and lift it atpredetermined intervals.

13. In a horizontal striper attachment for a knitting machine having apair of yarn fingers for shifting one of two yarns out of the path ofthe rotary stitch wheel, the combination therewith of a trip cam havingtwo high points movable in an upright direction and selectively disposedto cause movement in the fingers, and capable of movement verticallyinto and out of Operative position, a cam setting attachment forchanging the elevation of the cam, comprising a standard, a lever armpivotally mounted midway thereof on said standard, a shoe for the freeend of the lever arm to engage under the cam to lift it and above thecam to lower it, a lifting link for the opposite end of the lever arm,and intermittent rotary means for lifting said link and lowering theshoe to engage under the cam to raise the same.

14. In a horizontal striper attachment for a knitting machine having apair of yarn fingers for shifting one of two yarns out of the path ofthe rotary stitch Wheel, the combination therewith of a trip cam havingtwo high points movable in an upright direction and selectively disposedto cause movement in the fingers, and capable of movement verticallyinto and out of operative position, a cam setting attachment forchanging the elevation of the cam, comprising a fixed standard, a leverarm pivotally mounted between its ends on said standard, a shoe for thefree end of the lever arm to engage under the cam to lift it and toengage it from above to lower the cam, a lifting link for the other endof the lever arm having a follower at its opposite end, a chain movableunder said follower, and cam links arranged at spaced distances in saidchain for lifting the follower and link and lowering the shoe to engageunder the cam.

15. In a horizontal striper attachment for a knitting machine having apair of yarn fingers for shifting one of two yarns out of the path ofthe rotary stitch wheel, the combination therewith of a trip cam havingtwo high points movable in an upri ht direction and selectively disposedto cause movement in the fingers, and oapable of movement verticallyinto and out of operative position, a cam setting attachment forchanging the elevation of the cam, comprising a fixed standard, a leverarm pivotally mounted between its ends on said standard, a shoe for thefree end of the lever arm to engage under the cam to lift it and toengage it from above to lower the cam, a lifting link for the other endof the lever arm having a follower at its opposite end, a chain movableunder said follower, cam links arranged at spaced distances in saidchain for lifting the follower and link and lowering the shoe to engageunder the cam, a sprocket wheel carryin the chain, and means forintermittently rotating said sprocket.

16. In a horizontal striper attachment for a knitting machine having apair of yarn fingers for shifting one of two yarns out of the path ofthe rotary stitch wheel, the combination therewith'of a trip cam havingtwo high points movable in an upright direction and selectively disposedto cause movement in the fingers, and capable of movement verticallyinto and out of operative position, a cam setting attachment forchanging the elevation of the cam, comprising a fixed standard, a leverarm pivotally mounted between its ends on said standard, a shoe for thefree end of the lever arm to engage under the cam to lift it and toengage it from above to lower the cam, a lifting link for the other endof the lever arm having a follower at its opposite end, a chain movableunder said follower, cam links arranged at spaced distances in saidchain for lifting the follower and link and lowering the shoe to engageunder the cam, a sprocket wheel carrying the chain, and means forintermittently rotating said sprocket, comprising a ratchet wheelturning with the sprocket, a dog for stepping the ratchet wheel around,a pivoted lever arm mounted on said standard, and connected to the dogat one end and provided with a shoe at the other end, and a cam movablewith the first cam to move under said shoe to rock the second lever armand cause the dog to rotate the ratchet wheel.

17. A cam setting attachment of the character described, comprising atraveling cam movable in an upright direction and disposed for movementto operate other instrumentalities, and a cam setting attachment forthrowing said first cam into operative position, comprising a lever armmovable to lift said cam as it passes and to depress the cam again in asubsequent passing thereof.

18. A cam setting attachment of the character described, comprising atraveling cam movable in an upright direction and. disposed for movementto operate other instrumentalities, and a cam setting attachment forthrowing said first cam into operative position, comprising an armpivotally mounted centrally thereof and having a shoe at its free endmovable into the path of said cam to raise the same and thereafter toagain return the cam to its initial position out of the path of theshoe, and means to lower said arm at its free end to engage under thecam and lift it at predetermined intervals.

19. A cam setting attachment of the character described, comprising atraveling cam movable in an upright direction and disposed for movementto operate other instrinnentalities, and a cam setting attachment forthrowing said first cam into operative position, comprising a standard,a lever arm pivotally mounted midway thereof on said standard, a shoefor the free end of the lever arm to engage under the cam to lift it andabove the cam to lower it, a lifting link for the opposite end of thelever arm, and intermittent rotary means for lifting said link andlowering the shoe to engage under the cam to raise the same.

29. A cam setting attachment of the character described, comprising atraveling cam movable in an upright direction and disposed for movementto operate other instrumentalities, and a cam setting attachment forthrowing said first cam into operative position, comprising a fixedstandard, a lever arm pivotally mounted between its ends on saidstandard, a shoe for the free end of the lever arm to engage under thecam to lift it and to engage it from above to lower the cam, a liftinglink for the other end of the lever arm having a follower at itsopposite end, a chain movable under said follower, and cam linksarranged at spaced distances in said chain for lifting the follower andlink and lowering the shoe to engage under the cam.

21. A cam setting attachment of the character described, comprising atraveling cam movable in an upright direction and disposed for movementto operate other instrumentalities, and a cam setting attachment forthrowing said first cam into operative position, comprising a fixedstandard, a lever arm pivotally mounted between its ends on saidstandard, a shoe for the free end of the lever arm to engage under thecam to lift it and to engage it from above to lower the cam, a liftinglink for the other end of the lever arm having a follower at itsopposite end, a chain movable under said follower, cam links arranged atspaced distances in said chain for lifting the follower and link andlowering the shoe to engage under the cam, a sprocket wheel carrying thechain, and means for intermittently rotating said sprocket.

22. A cam setting attachment of the character described, comprising atraveling cam movable in an upright direction and disposed for movementto operate other instrumentalities, and a cam setting attachment forthrowing said first cam into operative position, comprising a fixedstandard, a lever arm pivotally mounted between its ends on saidstandard, a shoe for the free end of the lever arm to engage under'thecam to lift it and to engage it from above to lower the earn, a liftinglink for the other end of the lever arm having a follower at itsopposite end, a chain movable under said follower, cam links arranged atspaced distances in said chain for lifting the follower and link andlowering the shoe to engage under the cam, a sprocket wheel carrying thechain, and means for intermittently rotating said sprocket, comprising aratchet Wheel turning with the sprocket, a dog for stepping the theratchet wheel around, a pivoted 1ever arm mounted on said standard, andconnected to the dog at one end and provided with a shoe at the otherend, and a cam movable with the first cam to move under said shoe torock the second lever arm and cause the dog to rotate the ratchet wheel.

EMIL MILNER.

FRANK WALTER.

